Rebirth of a technological power

It is unimaginable that such a small propeller can produce such a strong thrust.

‘Benben’ now weighs 60kg, and the thrust generated by the propeller can lift ‘Benben’ off the ground, which means that the thrust reaches at least 600N.

And this thruster is a purely electric system!

Thinking about it, Cai Jin was extremely excited.

After fully charging 'Benben', Cai Jin couldn't wait to take it to the beach.

Arriving at the beach, ‘Benben’ automatically switches the walking environment to ‘beach’ mode and walks very vigorously.

It didn't take long to get into the water.

Cai Jin looked at the operation panel and operated the thruster for testing.

In the surrounding sea area, within 1 kilometer, the sea water depth is only 10 meters.

There was not much wind and waves at this time.

The propeller power was fully turned on, and he soon tested that the maximum speed of 'Benben' under water reached 10m/s, and the maximum thrust of the propeller was 6000N.

In the seawater environment, everything appears on the operation panel. The seawater depth is not too deep, and the light is still sufficient.

The seabed here is made of snow-white and fine sand. Occasionally, sea fish and shrimps will happily burrow into the sand. When they come out, they will bring some algae sediments with them, and they will open their mouths and swallow them.

This made Cai Jin very curious. As a person who grew up by the sea, he was actually full of yearning for the sea.

The sea is vast and mysterious, and of course it also comes with dangers.

They have been told since childhood that they can play on the beach, but not too deep.

"Is this a yellow-finned fish?" Cai Jin saw a yellow-finned fish about the size of a palm appearing in his sight. The yellow-finned fish was swimming freely.

Cai Jin gave the order, and the mechanical arm of Benben stretched out and clamped the Yellow Fin Fish quickly and accurately.

Then, under the control of Cai Jin, he quickly returned to the beach, and then released the robotic arm in front of Cai Jin.

Cai Jin was happy.

If you want seafood, you don't have to work hard at sea fishing, just let 'Benben' catch it.

Cai Jin had a great time.

When Benben was about to run out of power, Cai Jin's makeshift puddle was already filled with yellow-fin fish, conch, octopus, blue crab, sea bass and other seafood.

Control 'Benben' to transfer these seafood from the puddle to the bag.

Cai Jin left with Benben satisfied.

Dinner, a delicious seafood dinner.

They say that delicious ingredients often only require simple cooking, and this is true.

There are not too many bells and whistles. The yellowfin fish is boiled directly into the soup and a few slices of ginger are added. Other seafood such as conch, octopus, blue crab, and sea bass are steamed directly.

The whole family ate to their heart's content.

Early the next morning, Cai Jin came to the beach again with a fully charged 'Benben'. By this time, the seawater had risen and more than half of the beach was submerged.

But this is not a problem at all for 'Benben'.

The body of 'Benben' was quickly submerged in the sea water. When it entered the sea water three meters, Cai Jin controlled 'Benben' to turn on the propeller.

Otherwise, 'Benben' would walk very slowly at the bottom of the sea.

With propellers, 'Benben' is quite fast.

In the sea, a fully charged ‘Benben’ has a battery life of only four hours, which means it can travel for an hour and a half.

At its fastest speed, one and a half hours is enough to travel 54 kilometers!

And you have to know that the width of the strait here is only 240 kilometers.

Within this 54-kilometer range, the seawater depth is only 50 meters.

"The bottom of the sea is so beautiful!" Cai Jin looked at the colorful fish on the screen, as well as shrimps and crabs he had never seen before!

Suddenly, Cai Jin saw on the screen a large hole in a large rock not far ahead.

"I don't know if there are gentian or eastern star spots in this big hole!" Cai Jin was curious.

He steered Benben toward the big hole, which was dark.

Turning on the light, Cai Jin suddenly saw a big box placed in the big hole.

The box is in the shape of a cube, with a length, width and height of about one and a half meters. The box looks simple in style and is tightly bound by an iron chain. It is easily reminiscent of the legendary treasure box.

"I don't know who put this box. It looks like the iron chains are rusty. It must have been there for at least several decades." Cai Jin speculated secretly.

'Bengben''s mechanical arm easily tore off the iron chain, then bit one of the corners and pushed towards Cai Jin.

In order to speed up, Cai Jin asked 'Benben' to float to the surface of the sea with the big box, and then pushed forward quickly.

It didn't take long for the box to arrive.

Cai Jin did not open the box here, but put the box on Benben and went home directly.

Back home, Cai Jin found a hammer and smashed it at the rusty lock.

He smashed it open with a bang.

After smashing the box open, Cai Jin's eyes lit up.

The sealing material inside was actually very well done, and no seawater got in at all.

On the top of the box, there are rolls of paintings sealed in sealed bags, including three paintings.

Taking out these three paintings, Cai Jin did not rush to open the sealed bag.

Because at this time, he was dazzled by what was underneath.

The small yellow croakers were neatly arranged and sparkling with gold. The impact was even hard for Cai Jin, a multi-millionaire, to bear.

After all, the money in the account is just a flurry of numbers.

But these golds are real.

It took a long time for Cai Jin to react.

The small yellow croakers were taken out one by one, and a total of 200 small yellow croakers were taken out.

That's not all, because underneath the small yellow croakers are large yellow croakers.

There are a full 100 of these large yellow croakers!

The weight of a small yellow croaker is 31.25 grams, and the weight of a large yellow croaker is 312.5 grams, which means that the weight of gold in this box reaches 37500 grams, which is 37.5 kilograms!

The price of gold has risen sharply this year, from 369 yuan/gram a year ago to 500 yuan/gram, which means that the gold is worth 18.75 million yuan!

With this gold and the 10 million yuan that he just received, this means that he has almost enough money to renovate the factory.

Taking a breath of air, Cai Jin took a few deep breaths to calm down.

Afterwards, Cai Jin immediately put the gold back into the box, and then moved the box up to the third floor.

At this time, he was quite lucky. Fortunately, there was no one at home, otherwise it would be a bit troublesome if there were too many people talking.

After arriving on the third floor, Cai Jin opened the sealed bag.

Because of the good sealing, these paintings are well preserved.

He opened a painting and took a look.

The characters in the painting are lifelike.

A man dressed as an official was sitting under a tree, looking at something seriously.

Opposite the official, a lady was playing the piano.

Behind the lady is a screen with beautiful mountains and clear waters painted on it.

It turned out that the official was in a courtyard, listening to a lady playing the piano.

Although the whole painting is simple, it has a lofty artistic conception and makes people feel immersed in it at first sight.

Even if Cai Jin doesn't understand calligraphy and painting, he can still know that this is a good painting.

When he saw the author, Cai Jin was stunned.

Then I became extremely excited.

The author of this painting is none other than Tang Yin and Tang Bohu, who was known as the 'romantic genius' of the Ming Dynasty.

Cai Jin's impression of Tang Bohu comes from two movies, one is Xing Ye's movie "Tang Bohu Spots Autumn Fragrance", and the other is the TV series "Four Geniuses in Suits" starring Zhang Jiahui.